Type Alias TryFromFn

pub type TryFromFn = for<'src, 'mem> unsafe fn(source: OpaqueConst<'src>, target: OpaqueUninit<'mem>) -> Result<Opaque<'mem>, TryFromError>;

Function to try converting from another type

Safety

The target parameter has the correct layout and alignment, but points to uninitialized memory. If this function succeeds, it should return Ok with the same pointer wrapped in an Opaque. If conversion fails, it returns Err with an error.